The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 7730.
7730 has 4 digits. The digits in 7730 are 7, 7, 3, and 0.
When you are asking for the sum of the digits of 7730, you are basically asking what is
7 plus 7 plus 3 plus 0?
Therefore, the sum of the digits in 7730 is as follows:
7 + 7 + 3 + 0 = 17
Sum of digits in 7731
See if you can calculate the sum of the digits in the next number on our list before you go here.
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